Skithiryx, the Blight Dragon [The List] IDW Comics 2013 That creature's controller gains life

That creature's controller gains life equal to its power

Set: Mystery Booster Type: Artifact Rarity: Rare Cost: {5} Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it

When Chaos Orb lands

Set: Commander 2014 Type: Creature — Goblin Artificer Rarity: Rare Cost: {R} {T}: Choose target artifact a player controls and target artifact card in that player's graveyard

A deck can have any number of cards named Rat Colony

Skithiryx, the Blight Dragon [The List] IDW Comics 2013 That creature's controller gains lifeSet: The List Type: Legendary Creature Phyrexian Dragon Skeleton Rarity: Mythic Cost: {3}{B}{B} Flying Infect (This creature deals damage to creatures in the form of 1 1 counters and to players in the form of poison counters.) {B}: Skithiryx, the Blight Dragon gains haste until end of turn. {B}{B}: Regenerate Skithiryx.